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Identification of flood source areas in Pahang river basin, peninsular Malaysia.

The roles of upland watersheds in flood source contribution towards downstream areas in a river basin system are generally neglected in the inclusion of management strategy related to downstream flood management. In this study an assessment on the flood source area of Pahang river basin was attemp...

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Main Authors: Sulaiman, Wan Nor Azmin, Heshmatpoor, Ali, Rosli, Mohd Hafiz
Format: Article
Language:English
Published: Thai Society of Higher Eduction Institutes on Environment 2010
Online Access:http://psasir.upm.edu.my/id/eprint/15078/
http://www.tshe.org/ea/abstracts/2010_3-s_11.html
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spelling my.upm.eprints.150782013-05-23T02:56:54Z http://psasir.upm.edu.my/id/eprint/15078/ Identification of flood source areas in Pahang river basin, peninsular Malaysia. Sulaiman, Wan Nor Azmin Heshmatpoor, Ali Rosli, Mohd Hafiz The roles of upland watersheds in flood source contribution towards downstream areas in a river basin system are generally neglected in the inclusion of management strategy related to downstream flood management. In this study an assessment on the flood source area of Pahang river basin was attempted. The concept of unit flood response as an index of hydrologic response was used in identifying the flood source areas for the basin. The results indicated that among the 16 sub-basins of Pahang river basin, sub-basin of Sungai Pahang is ranked first in production of flood discharge while Sungai Perting sub-basin is ranked last in term of production of flood discharge. Comparison between maximum daily discharge of upper and lower segments of Pahang river basin indicated that up-stream watershed contributes significantly high and more flood (94.78%) than down-stream (5.22%). In addition, the upland watersheds were found to more efficient in producing surface runoff and send the floodwater to the lower receiving basin of Sungai Pahang. Considering that basin flood response is generally a nonlinear function of many factors, the sub-basins that are located nearest to and most distance from the basin outlet do not necessarily generate the highest and lowest contribution to the flood peak at the outlet. Similarly, sub-basins producing the highest or lowest absolute or specific discharge at their own outlet may not necessarily ranked first and last in flood index. Thai Society of Higher Eduction Institutes on Environment 2010 Article PeerReviewed Sulaiman, Wan Nor Azmin and Heshmatpoor, Ali and Rosli, Mohd Hafiz (2010) Identification of flood source areas in Pahang river basin, peninsular Malaysia. Environment Asia, 3 (Special Issue). pp. 73-78. ISSN 1906-1714 http://www.tshe.org/ea/abstracts/2010_3-s_11.html English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The roles of upland watersheds in flood source contribution towards downstream areas in a river basin system are generally neglected in the inclusion of management strategy related to downstream flood management. In this study an assessment on the flood source area of Pahang river basin was attempted. The concept of unit flood response as an index of hydrologic response was used in identifying the flood source areas for the basin. The results indicated that among the 16 sub-basins of Pahang river basin, sub-basin of Sungai Pahang is ranked first in production of flood discharge while Sungai Perting sub-basin is ranked last in term of production of flood discharge. Comparison between maximum daily discharge of upper and lower segments of Pahang river basin indicated that up-stream watershed contributes significantly high and more flood (94.78%) than down-stream (5.22%). In addition, the upland watersheds were found to more efficient in producing surface runoff and send the floodwater to the lower receiving basin of Sungai Pahang. Considering that basin flood response is generally a nonlinear function of many factors, the sub-basins that are located nearest to and most distance from the basin outlet do not necessarily generate the highest and lowest contribution to the flood peak at the outlet. Similarly, sub-basins producing the highest or lowest absolute or specific discharge at their own outlet may not necessarily ranked first and last in flood index.
format Article
author Sulaiman, Wan Nor Azmin
Heshmatpoor, Ali
Rosli, Mohd Hafiz
spellingShingle Sulaiman, Wan Nor Azmin
Heshmatpoor, Ali
Rosli, Mohd Hafiz
Identification of flood source areas in Pahang river basin, peninsular Malaysia.
author_facet Sulaiman, Wan Nor Azmin
Heshmatpoor, Ali
Rosli, Mohd Hafiz
author_sort Sulaiman, Wan Nor Azmin
title Identification of flood source areas in Pahang river basin, peninsular Malaysia.
title_short Identification of flood source areas in Pahang river basin, peninsular Malaysia.
title_full Identification of flood source areas in Pahang river basin, peninsular Malaysia.
title_fullStr Identification of flood source areas in Pahang river basin, peninsular Malaysia.
title_full_unstemmed Identification of flood source areas in Pahang river basin, peninsular Malaysia.
title_sort identification of flood source areas in pahang river basin, peninsular malaysia.
publisher Thai Society of Higher Eduction Institutes on Environment
publishDate 2010
url http://psasir.upm.edu.my/id/eprint/15078/
http://www.tshe.org/ea/abstracts/2010_3-s_11.html
_version_ 1643825826314059776
score 13.211869

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